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Official data from INPI

COMPOSIÇÃO DE POLÍMERO E PROCESSO PARA PREPARAR UM POLÍMERO AROMÁTICO DE MONOVINILIDENO REFORÇADO COM BORRACHA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004699

Type

Invention Patent

Filing

09/11/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/11/90
  2. Publication09/10/91
  3. Examination07/06/93
  4. Allowance12/29/98
  5. Grant07/27/99
  6. Expired01/29/13

The letters patent expired on 01/29/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/29/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

M. D. (pessoa física)

NL

Technical data

Priority claims

GB

8920574.4 · 09/12/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 11/09/2010

01/29/2013

RPI 2195

Concessão da patente

#16.1

07/27/1999

RPI 1490

Republicação - classificação IPC

#15.11

ALTERADA DE C08L 9/06, C08L 25/10

02/02/1999

RPI 1465

Deferimento

#9.1

12/29/1998

RPI 1460

Exigência - art. 36 da LPI

#6.1

10/14/1997

RPI 1402

Solicitação de exame técnico

#4.1

07/06/1993

RPI 1179

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

04/02/1991

RPI 1061

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